export default{
    font(){
        (function(doc, win) {
            var docEl = doc.documentElement,
            resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
            recalc = function() {
            var clientWidth = docEl.clientWidth;
            if (!clientWidth) return;
            if (clientWidth >= 750) {
            docEl.style.fontSize = '100px';
            } else {
            docEl.style.fontSize = 100 * (clientWidth / 750) + 'px';
            }
            };
            
            if (!doc.addEventListener) return;
            win.addEventListener(resizeEvt, recalc, false);
            doc.addEventListener('DOMContentLoaded', recalc, false);
           
            })(document, window);
    }
}
